Soldering flux.



iuo.

sonnntemo FLUX;

i A m n 14,5 soft 2 70 Drawing.

2 whom it may concern:

it known that i liiisnois E. J. Lrro'r it resident of Vvilkinslmrg, in the county of Alleyneny and State of Pennsylvania, have ed a. new and useful Improvement in 1mg Flux, of which the following is e specification.

This invention relates to a, soldering flux, for use in soldering tin, sheet metal articles, copper, aluminum or any other metal which can be united by soft solder by anyone versed in the art of soldering. v The purpose of the invention is to provide a flux which will thoroughly cleanse the surfaces to be soldered so as to form a strong and enduring joint. JThe principal ingredi- ;ent of the solder is stearin, or steariltncid, or

any animal tat, or product thereof' together wlth ehlorid ot mne. i lwse ingredients may he oon'lbined in various proportions, an 6X- cellent proportion being 18 to 20 parts of chlorid of zinc to 100 parts of stearln or other flfill'ilzll fat. A vehicle of any kind may, if

Specification of Letters Patent.

Application filed March 22, 1915.

I Patented June 20,

Serial N0. 16,252.

desired, be added, such as Vaseline, when it is desired to make the flux in the form of a paste. lVhen the flux consists mostly of stearin or stearin' and chlorid of zinc, it is fairly hard and can be formed into sticks Which makes it easy to apply,even in places Where it is difficult or almost impossible to use av fluid orsemi-fluid flux.

The proportions of the ingredients may be varied Within considerable limits without departing from the. spirit of the invention. What I claim is l A soldering flux composed of an animal fat and chlorid of zinc in the approximate proportion of one part of chlorid of zinc to five parts of fat. In testimony my hand.

white hereunto set 40 FRANCIS J4 LrroT.

WVitnesses':

GLENN H.7LERESCI-IE, WILLIAM B. WHABTON. 

